Pick up the sheaths of the areca palm leaves that are fallen on the ground. We do not chop down any trees. Pick these leaf sheaths from the ground, bundle them and stack them up like this.
When it's time to make the plates, wash the sheaths thoroughly, put them in moulds and heat-press them. This not only gives them the needed shape, but it also sterilises them!
That is all there is to it.
No chemicals or toxins.